We used room service in the evenings. So the kitchen was open but I don’t know if one can eat in the restaurant . Tons of great places close by.

The train is very very cheap and quite straight forward to us, it doe have a few stops to make along the way especially after you pass Pompei but when you arrive in Sorrento you simple walk round the back of the station and up a small flight of steps to the main road and you are literally 2 or 3 hundred yards from the front door of the Hotel, take a look at Google map have a great holiday

I don’t know the answer but I’ve stayed here on a number of occasions and had no issue with the rooms they are spacious and we had a very large balcony the bed was comfortable rooms spotless Most of all it’s in a fantastic location

No, but there is a fridge. We took a travel kettle and bought milk and coffee in the nearby supermarket

We traveled before the pool was open, so I'm not able to answer.